Submission #888103

#	Time	Username	Problem	Language	Result	Execution time	Memory
888103		oblantis	Detecting Molecules (IOI16_molecules)	C++17	69 / 100	2 ms	604 KiB

molecules

#include <bits/stdc++.h>
#include "molecules.h"
#define all(v) v.begin(), v.end()
#define pb push_back
#define ss second
#define ff first
#define vt vector
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<double, int> pdi;
const int inf = 1e9 + 10000;
const int mod = 1e9+7;
const int maxn = 5e5 + 12;
vector<int> find_subset(int l, int u, vector<int> w) {
    int n = w.size();
    vi ans, ns;
    int s = 0, j = 0, o = n - 1;
    pair<int, int> p[n];
    for(auto i : w) {
		if(i >= l && i <= u) {
			return {j};
		}
		if(s < l)s += i;
		p[j] = {i, j};
		j++;
	}
	if(s < l) return ans;
	sort(p, p + n);
	s = j = 0;
	if(p[0].ff > u || n == 1)return ans;
	if(p[0].ff + p[1].ff > u) {
		return ans;
	}
	while(j < n && s + p[j].ff <= u) {
		ans.pb(p[j].ss);
		s += p[j].ff;
		j++;
	}
	if(s >= l) return ans;
	j--;
	while(j >= 0 && s <= l) {
		s -= p[j].ff;
		s += p[o].ff;
		ns.push_back(p[o].ss);
		o--;
		j--;
		ans.pop_back();
	}
	if(s >= l){
		ans.insert(ans.end(), all(ns));
		return ans;
	}
	return vi(0);
}

• Subtask 1: 9 / 9
• Subtask 2: 10 / 10
• Subtask 3: 12 / 12
• Subtask 4: 15 / 15
• Subtask 5: 23 / 23
• Subtask 6: 0 / 31